Nature collections on the RCIN platform include very diverse sets, both in terms of taxonomy and the type of objects presented. One can find here not only a rich representation of herbarium sheets of vascular plants and bryophytes, but also specimens of other groups once included in the plant world, such as algae, lichens, fungi, and slime moulds. Those interested in entomology will encounter here rich collections of insects: butterflies, flies, beetles, and springtails. The unique ornithological (bird eggs) and theriological (mammal skulls) collections of several thousands of specimens are also present. Apart from those of the modern organisms, palaeobiological collections occupy a special place, among them Jurassic crab fossils and the organisms embedded in amber.
We present the digitised objects as photos/scans of the specimens and accompanying data, mainly on their systematic position as well as the time and place of collection. Due to the wide spectrum of systematic collections, and hence their size, various imaging techniques were used. In addition to life-size digital images of vascular plants or larger animals, we also present macrophotographs and micrographs made with the use of specialized microscopes, allowing study of the fine structure of small organisms or their fragments. A separate section among the natural collections is occupied by research data, derived from e.g. long-term climate observations or experiments and field observations in the forest science domain. Scanned ‘traditional’ photographs of plants and botanical drawings may also be of interest to many visitors.